Item 2 A uniform, 248-N rod th3t is 2.11 m long carries 3 225-N weight at its ri

Question

Item 2 A uniform, 248-N rod th3t is 2.11 m long carries 3 225-N weight at its right end and an unknown weight W toward the left end (see the figure (Figure 1)). When W is placed 45.7 cm from the left end of the rod, the system just balances horizontally when the fulcrum is located 85.0cm from the right end. Part A Find W. Part B If W is now moved 24.2cm to the right, how far must the fulcrum be moved to restore balance? Part C If W is now moved 24.2cm to the right, in what direction must the fulcrum be moved to restore balance?

Explanation / Answer

a) 225*.85 = (2.11-.457-.85)*W
W=238.17 N

b)
225*(.85+x) = (2.11-.457.85-x)*238.17
x=0.4723 m

c) to the left

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